A red-flag fire warning is in effect, but Southern California temperatures are expected to cool Wednesday, with a slight chance of showers and thunderstorms over Los Angeles and Ventura counties, according to the National Weather Service.

In the tri-city area, temperatures aren’t expected to get past the low-90s through the weekend.

"We are seeing some relief after all these days of heat," Curt Kaplan, a spokesman for the weather service, told the Los Angeles Times.

The red-flag warning, which signifies an increased threat of brush fires, began at midnight and is expected to end at 5 p.m. for the mountains, deserts and valleys of Los Angeles, Ventura and Santa Barbara counties.

The warning was issued based on the chance of dry lightning and gusty winds increasing the chances of fire.